Lots of love for Vinyl on talkbass lately!
Your very nice linear tracking turntable has a P-mount cartridge. You do not need an alignment protractor or any other tool for that turntable. It's a plug-and-play design.
If you have the stock cartridge that came with the turntable, you should be able to look it up at a place like
Needle Doctor or
LP Gear. They may be able to help you if you email them. If it is damaged or missing, you can get a replacement cartridge like the
Audio-technica AT 92ECD for about $25 or so.
The stylus should be on a plastic housing that snaps in and out of the cartridge. The cartridge is connected to a small arm or other mounting point on the lid of your turntable using a single screw and it plugs right in.